9+-0.4y=4.5+-0.175y

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Solution for 9+-0.4y=4.5+-0.175y equation: 


Simplifying
9 + -0.4y = 4.5 + -0.175y

Solving
9 + -0.4y = 4.5 + -0.175y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '0.175y' to each side of the equation.
9 + -0.4y + 0.175y = 4.5 + -0.175y + 0.175y

Combine like terms: -0.4y + 0.175y = -0.225y
9 + -0.225y = 4.5 + -0.175y + 0.175y

Combine like terms: -0.175y + 0.175y = 0.000
9 + -0.225y = 4.5 + 0.000
9 + -0.225y = 4.5

Add '-9' to each side of the equation.
9 + -9 + -0.225y = 4.5 + -9

Combine like terms: 9 + -9 = 0
0 + -0.225y = 4.5 + -9
-0.225y = 4.5 + -9

Combine like terms: 4.5 + -9 = -4.5
-0.225y = -4.5

Divide each side by '-0.225'.
y = 20

Simplifying
y = 20

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